diff --git a/install_yunohost b/install_yunohost
index 7d60371..03a3b7d 100755
--- a/install_yunohost
+++ b/install_yunohost
@@ -110,6 +110,8 @@ function main()
         reboot
     fi
 
+    step fix_locals
+
     step post_install || die "Post-installation failed"
 
     info "Installation logs are available in $YUNOHOST_LOG"
@@ -402,6 +404,12 @@ function restart_services() {
     return 0
 }
 
+function fix_locals() {
+    [ "$(grep LC_ALL /etc/environment)" ] || echo 'LC_ALL="en_US.UTF-8"' >> /etc/environment
+    source /etc/environment
+    export LC_ALL
+}
+
 function post_install() {
     # No postinstall in auto mode
     [[ "$AUTOMODE" == "1" ]] && return 0